Mukhtasar Muslim

Narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: By Him in Whose Hand is the soul of Muhammad (peace and blessings of Allah be upon him), there is none from this nation, be he Jew or Christian (or follower of any other religion), who hears about me and then does not believe in what I have been sent with (i.e., the Qur'an and Sunnah), but he will be among the inhabitants of Hell.